SHARE-BASED COMPENSATION - Stock Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
SHARE-BASED COMPENSATION
Total stock-based compensation	$ 259	$ 207	$ 509	$ 314
Research and development
SHARE-BASED COMPENSATION
Total stock-based compensation	75	54	147	96
General and administrative
SHARE-BASED COMPENSATION
Total stock-based compensation	$ 184	$ 153	$ 362	$ 218